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BOSTON MARATHON 2023

Courtney Hollingsworth

Bib: 9874•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 15%
Division (F18-39)
#0 / 4884
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:21
Rank: #12732
Start → 5K
24:21 | 7:50/mi
10K· 6.21 mi
48:36
Rank: #12894 (-162)
5K → 10K
24:15 | 7:48/mi
15K· 9.32 mi
1:12:54
Rank: #12888 (+6)
10K → 15K
24:18 | 7:49/mi
20K· 12.43 mi
1:36:51
Rank: #12345 (+543)
15K → 20K
23:57 | 7:43/mi
Half· 13.11 mi
1:42:03
Rank: #12272 (+73)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
2:00:50
Rank: #11992 (+280)
Half → 25K
18:47 | 7:45/mi
30K· 18.64 mi
2:24:55
Rank: #11389 (+603)
25K → 30K
24:05 | 7:45/mi
20M
2:35:11
Rank: #11013 (+376)
30K → 20M
10:16 | 7:33/mi
21M
2:42:53
Rank: #10660 (+353)
20M → 21M
7:42 | 7:42/mi
35K· 21.75 mi
2:48:14
Rank: #10466 (+194)
21M → 35K
5:21 | 7:09/mi
23M
2:57:18
Rank: #10081 (+385)
35K → 23M
9:04 | 7:14/mi
24M
3:04:20
Rank: #9777 (+304)
23M → 24M
7:02 | 7:02/mi
40K· 24.85 mi
3:10:22
Rank: #9510 (+267)
24M → 40K
6:02 | 7:03/mi
25.2M
3:12:58
Rank: #9400 (+110)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:20:03
Rank: #9202 (+198)
25.2M → Finish
7:05 | 6:57/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:42:03
Pace7:47 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:38:00
Pace7:29 /mi
📊Negative Split: 4.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1324:217:5024:21
7:50
-
10K
6.21 mi11:18:2848:367:4924:15
7:48
-0:02
15K
9.32 mi11:42:461:12:547:4924:18
7:49
+0:01
20K
12.43 mi12:06:431:36:517:4823:57
7:43
-0:06
Half
13.11 mi12:11:551:42:037:475:12
7:37
-0:06
25K
15.53 mi12:30:422:00:507:4718:47
7:45
+0:08
30K
18.64 mi12:54:472:24:557:4624:05
7:45
0:00
20M
20.00 mi13:05:032:35:117:4610:16
7:33
-0:12
21M
21.00 mi13:12:452:42:537:457:42
7:42
+0:09
35K
21.75 mi13:18:062:48:147:445:21
7:09
-0:33
23M
23.00 mi13:27:102:57:187:439:04
7:14
+0:05
24M
24.00 mi13:34:123:04:207:417:02
7:02
-0:12
40K
24.85 mi13:40:143:10:227:406:02
7:03
+0:01
25.2M
25.20 mi13:42:503:12:587:392:36
7:32
+0:29
Finish
26.22 mi13:49:553:20:037:387:05
6:57
-0:35

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:57 /mi

Average Pace

7:38 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

52:38

26% of race

Time at Steady Pace

2:27:25

74% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:38 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:54:1324:217:5024:21
7:50
#12732
10K
6.21 mi11:18:2848:367:4924:15
7:48
#12894
15K
9.32 mi11:42:461:12:547:4924:18
7:49
#12888
20K
12.43 mi12:06:431:36:517:4823:57
7:43
#12345
Half
13.11 mi12:11:551:42:037:475:12
7:37
#12272
25K
15.53 mi12:30:422:00:507:4718:47
7:45
#11992
30K
18.64 mi12:54:472:24:557:4624:05
7:45
#11389
20M
20.00 mi13:05:032:35:117:4610:16
7:33
#11013
21M
21.00 mi13:12:452:42:537:457:42
7:42
#10660
35K
21.75 mi13:18:062:48:147:445:21
7:09
#10466
23M
23.00 mi13:27:102:57:187:439:04
7:14
#10081
24M
24.00 mi13:34:123:04:207:417:02
7:02
#9777
40K
24.85 mi13:40:143:10:227:406:02
7:03
#9510
25.2M
25.20 mi13:42:503:12:587:392:36
7:32
#9400
Finish
26.22 mi13:49:553:20:037:387:05
6:57
#9202
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi127323289328912903(Top 48%)3410(Top 30%)3410(Top 70%)
10K6.21 mi3.10 mi12894-1623375-863375-8613163(Top 49%)3518(Top 31%)3518(Top 72%)
15K9.32 mi3.11 mi12888+63390-153390-1512903(Top 48%)3410(Top 30%)3410(Top 70%)
20K12.43 mi3.11 mi12345+5433114+2763114+27610993(Top 41%)2397(Top 21%)2397(Top 49%)
Half13.11 mi0.68 mi12272+733078+363078+3611230(Top 42%)2461(Top 22%)2461(Top 50%)
25K15.53 mi2.42 mi11992+2802932+1462932+14610678(Top 40%)2320(Top 20%)2320(Top 48%)
30K18.64 mi3.11 mi11389+6032631+3012631+3019009(Top 34%)1712(Top 15%)1712(Top 35%)
20M20.00 mi1.36 mi11013+3762439+1922439+1927230(Top 27%)1122(Top 10%)1122(Top 23%)
21M21.00 mi1.00 mi10660+3532280+1592280+1595660(Top 21%)721(Top 6%)721(Top 15%)
35K21.75 mi0.75 mi10466+1942199+812199+816284(Top 24%)865(Top 8%)865(Top 18%)
23M23.00 mi1.25 mi10081+3852037+1622037+1625032(Top 19%)546(Top 5%)546(Top 11%)
24M24.00 mi1.00 mi9777+3041925+1121925+1124867(Top 18%)542(Top 5%)542(Top 11%)
40K24.85 mi0.85 mi9510+2671832+931832+934191(Top 16%)459(Top 4%)459(Top 9%)
25.2M25.20 mi0.35 mi9400+1101803+291803+294196(Top 16%)522(Top 5%)522(Top 11%)
Finish26.22 mi1.02 mi9202+1981737+661737+664963(Top 19%)723(Top 6%)723(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12903

Females

3410

F18-39

3410

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

13163

Females

3518

F18-39

3518

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12903

Females

3410

F18-39

3410

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10993

Females

2397

F18-39

2397

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11230

Females

2461

F18-39

2461

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10678

Females

2320

F18-39

2320

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9009

Females

1712

F18-39

1712

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7230

Females

1122

F18-39

1122

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5660

Females

721

F18-39

721

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6284

Females

865

F18-39

865

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5032

Females

546

F18-39

546

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4867

Females

542

F18-39

542

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4191

Females

459

F18-39

459

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4196

Females

522

F18-39

522

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

4963

Females

723

F18-39

723

Passing Analysis

Category:
Athletes Passed
4177*
Passed By
647
Net Change
+3530
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12732
5K → 10K230392-162#12732#12894
10K → 15K207201+6#12894#12888
15K → 20K56421+543#12888#12345
20K → Half807+73#12345#12272
Half → 25K29919+280#12272#11992
25K → 30K6063+603#11992#11389
30K → 20M377*1+376#11389#11013
20M → 21M3530+353#11013#10660
21M → 35K1940+194#10660#10466
35K → 23M3850+385#10466#10081
23M → 24M304*0+304#10081#9777
24M → 40K267*0+267#9777#9510
40K → 25.2M1100+110#9510#9400
25.2M → Finish2013+198#9400#9202
TOTALS4177*647+3530

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing